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visits member for 2 years, 5 months
seen Jul 18 '12 at 19:08

Novice cryptographer.


Sep
24
awarded  Autobiographer
May
16
accepted Is XOR in a CBC-like mode secure?
May
13
comment Why Addition Mod 32?
Thank you for your prompt and clear response, this makes much more sense now.
May
13
awarded  Supporter
May
13
awarded  Scholar
May
13
accepted Why Addition Mod 32?
May
13
asked Why Addition Mod 32?
May
12
comment Is XOR in a CBC-like mode secure?
The idea I had for the key is that the user provides a key of n-bytes, then the plaintext is divided into n-byte blocks, padded if necessary, and then for each block, you run the algorithm.
May
12
comment Is XOR in a CBC-like mode secure?
Yes, the title was edited by Ninefingers, and the reason I don't use the ciphertext to encode more ciphertext is that would seem insecure, because the previous byte of ciphertext is known to a possible attacker, while the previous byte of plaintext is encrypted.
May
12
comment Is XOR in a CBC-like mode secure?
Thanks, Ninefingers! You're right, I had no idea what to put as the title.
May
12
awarded  Student
May
12
asked Is XOR in a CBC-like mode secure?